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New Product: Digital DC Current Sensors – Making Current Measurement Even Easier

Information below from Riedon.


The new SSD Smart Shunt series consists of highly-integrated digital system-in-package (SiP) devices that can be used in a wide variety of battery-related current sensing applications. Each features a 16-bit automotive-grade microcontroller unit (MCU), a 24-bit ADC (with buffered analog Inputs), and a flash memory resource. This brings plug-and-play simplicity to current measurements, battery voltage monitoring, and coulomb counting. Among the places where these devices will be utilized are large-scale energy storage banks, renewable energy generation infrastructure, industrial motor drives, building automation systems, EV charging stations, etc.



The original Smart Shunt devices, which were introduced in mid-2020, brought together the high amperage capabilities of conventional passive shunt resistors and the accuracy of closed-loop Hall Effect current sensors. They thereby present a unique combination of accuracy, stability and electrical isolation, while also eliminating the need for periodic calibration work. The new SSD Smart Shunt series now takes this even further – offering access to greater amounts of data, as well as making integration more straightforward.

Riedon’s SSD Digital Smart Shunt devices have current sensing capabilities rated from 100A (2kA peak) to 1kA (20kA peak). They exhibit better than ±0.1% full-scale accuracy, and their full-scale linearity remains within a ±0.1% margin. The advanced non-linear temperature compensation mechanisms these sensors possess ensure that their accuracy is not affected by external temperature fluctuations.

Long-term stability is another key attribute of the SSD Smart Shunt series, with less than ±0.1% deviation during 1000 hours of operation (at 60°C terminal temperature). A – 40°C to +115°C (ambient) operational temperature range allows these devices to be used in harsher environments than other current sensing products. The built-in flash memory has an error correction code (ECC) and autocorrects on single bit errors.

hours operation (at 60°C terminal temperature) with less than ±0.1% deviation

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